-y^2=-24y+144

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Solution for -y^2=-24y+144 equation: 



-y^2=-24y+144

We move all terms to the left:

-y^2-(-24y+144)=0

We add all the numbers together, and all the variables

-1y^2-(-24y+144)=0

We get rid of parentheses

-1y^2+24y-144=0

a = -1; b = 24; c = -144;
Δ = b2-4ac
Δ = 242-4·(-1)·(-144)
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$y=\frac{-b}{2a}=\frac{-24}{-2}=+12$

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